Software development and computer services, summary statistics

The summary statistics by North American Industry Classification System (NAICS) which include: operating revenue (dollars x 1,000,000), operating expenses (dollars x 1,000,000), salaries wages and benefits (dollars x 1,000,000), and operating profit margin (by percent), of software publishers (NAICS 51121), data processing, hosting, and related services (NAICS 51821), and computer systems design and related services (NAICS 54151), annual, for five years of data.